A distributed processing network system (10), an integrated response system (50) comprising multiple distributed processing network systems and related methods providing situational awareness information for emergency responses. In one embodiment there is disclosed a response system (50) comprising first and second server based systems (10, 11) each providing real time awareness of personnel (18, 19) for different organizations, the first system receiving information for a first organization and the second system receiving information for a second organization, the first system coupled to the second system to communicate information generated in the first system to personnel in the second organization via the second system to facilitate timely and appropriate response by personnel in the second organization to an emergency situation in the first organization.